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Related Experiment Video

Updated: Jun 1, 2026

Athymic Rat Model for Evaluation of Engineered Anterior Cruciate Ligament Grafts
10:32

Athymic Rat Model for Evaluation of Engineered Anterior Cruciate Ligament Grafts

Published on: March 26, 2015

Triple-bundle ACL grafts evaluated by second-look arthroscopy.

Yoshinari Tanaka1, Konsei Shino, Shuji Horibe

  • 1Department of Sports Orthopaedics, Osaka Rosai Hospital, 1179-3 Nagasone-cho, Kita-ku, Sakai, Osaka, 583-8555, Japan. yoshi-tanaka@iris.eonet.ne.jp

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|May 25, 2011
PubMed
Summary

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Triple-bundle anterior cruciate ligament (ACL) grafts resemble natural ACL morphology. However, 10% of posterolateral grafts showed rupture, highlighting potential concerns for this specific bundle in ACL reconstruction.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Biomedical Engineering

Background:

  • Anterior cruciate ligament (ACL) reconstruction is a common orthopedic procedure.
  • Triple-bundle ACL reconstruction aims to replicate the native ACL's anatomy.
  • Assessing graft morphology and integrity post-reconstruction is crucial for patient outcomes.

Purpose of the Study:

  • To evaluate the morphology of triple-bundle anterior cruciate ligament (ACL) grafts using second-look arthroscopy.
  • To assess graft tension, damage, and synovial coverage in triple-bundle ACL reconstructions.

Main Methods:

  • A case series of 41 patients undergoing anatomical triple-bundle ACL reconstruction with semitendinosus autograft.
  • Second-look arthroscopy performed between 6 and 22 months post-surgery.

Related Experiment Videos

Last Updated: Jun 1, 2026

Athymic Rat Model for Evaluation of Engineered Anterior Cruciate Ligament Grafts
10:32

Athymic Rat Model for Evaluation of Engineered Anterior Cruciate Ligament Grafts

Published on: March 26, 2015

  • Arthroscopic assessment of anteromedial (AM), intermediate (IM), and posterolateral (PL) graft bundles for tension, damage, and synovial coverage.

    • Main Results:

    • Triple-bundle grafts exhibited a fan-out shape, mimicking natural ACL.
    • High graft tension was observed: 93% AM, 90% IM, 88% PL.
    • No significant rupture in AM/IM grafts; 10% of PL grafts showed complete/substantial rupture near the femoral aperture.
    • Synovial coverage was good in most grafts, but 41% of PL grafts had incomplete coverage.

    Conclusions:

    • The morphology of triple-bundle ACL grafts closely resembles the natural ACL.
    • Posterolateral (PL) grafts demonstrated a higher incidence of rupture and incomplete synovial coverage compared to AM and IM grafts.
    • Further investigation into PL graft integrity in triple-bundle ACL reconstruction is warranted.